Attachment for internal combustion engines



July 14, A 5 1,814,370

ATTACHMENT FOR INTERNAL COMBUSTION ENGINES Filed Aug. 30, 1928 INVENTOR Mlg/ma JO/I v/s ATTORNEYS keep off which Patented July 14, 1931 PATENT OFFICE MICI-IAEL J. DAVIS,'OF BROOKLYN, NEW YORK ATTACHMENT FOB inrnnnnt GQMBUSTION ENGINES a Application filed August 30,1928. Serial No. 302,925.

My invention relates to internal combus tion enginesv and. contemplates a simple apparatus to increase the operating efficiency ofsuch engines. V i

It is a well known fact that internal combustionengines, especially the type used in automobiles, operate much more eficiently at night than during the day. This is due to the fact that the night air is damper than the air during the day. I

It. is a particular object of my invention to provide means for supplying moist air to thecombustion chamber of an internal combustion engine. By the provision of this means I also secure the advantage of practically eliminating the carbon deposited" in the combustion chamber of the'engine since such deposits are augmented bylack of moisture in theair.

Itis a further objectof my invention to supply means for flushing the cylinder and valves with oil in conjunction with the above mentioned means to be operated simultaneously 'so arrange the air moistening means and the flushing device that if desired they may be used as a carburetor by substituting fuel oil for flushing oil; i

It is a still further object of my invention to arrange the above-mentioned means in a simple inexpensive apparatus, the assembling of which requires no mechanical skill the manipulation of which is fool-proof, the space occupied by which is small and the upis practically negligible. Further objects and advantages of my invention will appear from the annexed detailed descriptionof the drawings in'which:

Fig. l is a verticalsection through the complete device. 2 p a V Fig. 2 is a horizontalsection through the line 2-2 ofFig. 1. v

Referring to the drawings in detail, 1 represents a cylinder closed at its lower end by a cap 2 and at its upperend by a:

I therewith or independently thereof. I ,Theprovision of this flushing means affords cap *3 and sealed-at bothen ds by a packing 4c- Spaced perforations 6. Plate 5 rests firmly against the packing Q. Mounted inside cylinder '1 is. a second cylinder 7 held securely in place be from-thecap 2 is a plate 5 having a series of tweenthe-plate 5 and the cap 8 and rendered water-tight with respect to cylinder 1by' packing 9. Mounted on cap 3 is a nozzle 10 having a stop-cock 11 of any desired'make.

V This nozzlelO is opened at one end to the atmosphere and at the other end" to cylinder 1. Passinglongitudinally through'cylinde r 7 and through caps 2'and'3 is a pipe 12 open at its free end to the atmosphere and provided atthe same end with astop-coclr 13".

Atthe lower end'of pipe 12 'be'tweentheplate 5 and the cap 2 are a series of perforations 14, the function of which will be hereinafter stated. Pipe 12 carries fastening means at either end whereby it serves to clamp the Variousparts in assembled positiom' Passing through plate 3 and extending nearlyto "the bottom of cylinder 7 is anotherpipe 1-5 open at-its lowerend and connected atits upper end to a pipe 16 which in turn is connected.

to the manifold of the engine." Pipe 15 also carries a stop-cock 17 at'its upper end. Mounted on cap 3 is another nozzle 18 ing a. direct connection between the atmosphere and cylinder '7 and provided with a stop-cock 19. Betweenthe pipe 16and ,cyl

inder 1 and providing a passage between the two is a pipe 20. Over the mouthjof pipe 20 is a fine mesh screen 20. Nozzles 10' and 18 are both detachably secured to cap 3 by screw threads or any conventional means whereby, when detached,.tl 'ey provide open .ings 21 through which liquid may beintroducedinto cylinders land? Attached to oneside of cylinder 1' either integrally or detachably is a plate 22 having bolt holes 23 for attaching the device to a. support adjacent an internal combustion engine. It is to be noted that the pipe l6 is'con neoted directly with the manifold-of the engine in order to avoid passageof the, moist 7 air through thecarb'uretor. The reason for this is that the presence of the moist'airfin the carbureto'r has a tendency-to} raise the --vaporiz'ation point of the fuel oil and also has a tendency to condense by reason of which much carburetor trouble is experienced. I avoid such trouble by leading the moist air into the manifold at one or more points, condensation being eliminated by reason of the great suction caused'by various pistons.

The whole device is preferably made of aluminium although it may also be made of glass or any other desired material. In the event that the walls are opaque liquid level gauges of the conventional type are attached thereto. The operation of the device is as follows:

Cylinder 1 is substantially filled with water and cylinder 7 issubstantially filled with oil..

Stop-cocks 13 and '11 are opened and cocks 17 and 19 are closed. The engine is started. The vacuum created in the manifold draws air through the nozzle 10 and through pipe 12. The air passes through pipe 12, through the perforations 14 and is drawn upwardly through the perforations 6 and the water in cylinder 1 to the pipe 20 and thence to the engine. If insufficient moisture is being obtained in the air, cocks l1 and 13 can be regulated to obtain more moisture. By this means the moisture in the air always remains constant and provides air at all times of the same quality as night air. This condition renders manipulation of the carburetor to meet varying atmospheric conditions practically unnecessary.

If the oil in cylinder 7 is of a non-inflammable nature or if it has a suitable flash-point a very satisfactory result can be produced by introducing a small charge of this oil with each charge of gas and air going into the .cylinder or at stated. intervals because its presence thoroughly lubricates the working parts of the engine and practically prevents the deposition of carbon. This manner, of WOl-k: ing is efiectedby opening cocks 17 and 19, simultaneously with cocks 13 and 11 whereupon oil passes from cylinder 7 through the pipe, 15 into the pipe 16. The cock 1? can be so adjusted from the dashboard in the conventional manner that a charge of oil can be introduced whenever desired.

. If it is desired to flush out the a long run cocks l1 and 13 are closed'and cocks "17 and 19 are opened. The suction of the manifold, preferably running on the self-starter alone, then draws in oil fro-m cylinder 7, flooding the cylinder and valves where it may be left over night'or for a number of hours thereby effecting a thorough cleansing and lubrication of the vital parts of the engine. I

If it be desired to use this device as a carburetor it is simply necessary to substitute fuel oil for the flushing oil in cylinder 7 and connect cylinder 7 to a fuel supply by the well-known gravity system or any other system. As before stated, the cocks may be opengine after erated from the dashboard by utilizing the conventional means for adjusting carburetors from the dashboard. When using the device as a carburetor all the cooks are opened or if desired cook 11 may be kept closed.

It is apparent from the above detailed description of my device that it supplies much needed element in the internal combustion engine industry. By the use of such device it is possible to materially cut down the supply of fuel needed for a given run of the engine, to substantially eliminate carbon deposits from the vital parts of' the engine, and to keep the engine in smooth running order under trying conditions.

Having thus set forth the nature and objects of my invention and described a specific embodiment thereof to which embodiment I in no way limit myself, but on the contrary, contemplate the various obvious modifications of the same, what I claim as new and desire to protect by Letters Patent is L- 1. An attachment for an internal combustion engine comprising a pair of annularly spaced cylinders, water tight and air tight with respect to each other, an air inlet on each of said cylinders, an air outlet on oneof said cylinders, a liquid outlet on the other of said cylinders and a pipe leading to the manifold of the engine connected to'rsaid air outlet and said liquid outlet, the cylinder having the air outletcarrying water and the cylinder having the liquid outlet carrying oil.

2. An attachment for an internal combustion engine comprising a cylinder, a cap on either end of said cylinder forming a top and bottom thereof, a perforated plate spaced from the bottom cap of said cylinder,.a sec 0nd cylinder annularly spaced from said first cylinder, said second, cylinder being carried between said plate andthe top .cap of said cylinder and an air pipe passing. through said second cylinder to, the bottom .of said first cylinder, said pipe being perforated at a point between the bottoms of the two cylinders, said first mentioned cylinder being adapted to carry water and carrying a pipe connecting its upper end to the manifold of the engine.

3. An attachment for an internal oombustion engine comprising a cylinder having a cap at either end therefor, a plate having a perforated portion spaced from the bottom of said cylinder, a second cylinder annularly spaced from said first mentioned cylinder and resting on the unperforated portion of said plate, passing longitudinally-through both of said cylinders having one end open to the atmosphere and having perforations at a point between the bottoms of said cylinders, apipe carried by the top cap of said first mentioned cylinder and extending substantially to the bottom of said second mentioned cylinder, said pipe having its lower end open and its providing a top and bottom a pipe upper end connected to a pipe leading to the manifold of the engine and an air outlet on said first mentioned cylinder connected to said manifold pipe, said first mentioned cylinder comprising a water receptacle, the said second mentioned cylinder comprising an oil receptacle.

4:. An attachment for an internal combustion engine comprising a pipe adapted to be connected to a manifold, a water receptacle attached to said pipe, means for causing air to pass through said water receptacle into the manifold, and an oil receptacle, the contents of which are independent of the contents of said water receptacle, attached to said pipe whereby oil is caused to pass through said pipe into said manifold by the suction of the manifold.

In testimony whereof I have hereunto set my hand.

MICHAEL J. DAVIS. 

